Molecular Response to Ustekinumab in Moderate-to-severe Ulcerative Colitis by Serum Protein and Biopsy Gene Expression Analysis: Results from the UNIFI Phase 3 Induction Study - Li, K; Yang, F; Hayden, K; Strawn, D; Wadman, E; Bhagat, S; Marano, C; Friedman, JR (Zeitschrift für Gastroenterologie, 2019)